I've got a question for ultrex owners....have a buddy who has a ultrex on his Crestline and seems that it does not hold his boat anywhere near a 5 ft range had a chance to compare the xi5 side by side with it over the weekend. The xi5 was on a fiberglass boat and honestly was much better at doing its thing compared to the ultrex...my question is does the aluminum boat make that much difference or is it something else. Not wanting to start a issue just curious about the lightweight boat if that has any bearing on it.....thanks